Rohde & Schwarz XT 4410A - Page 76

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Operator’s Manual • Use under Normal Conditions
– 2.16 – 6076.0822.12.02
Running remote control sessions (fixed, advanced) are terminated.
Control units, which may be connected, are able to operate in remote control sessions
(monitoring) only.
In local mode the four audio lines (NB1, WB1, NB2, WB2) have no function. In voice
mode (V/D UNCP) the signal from the headset interface is used for carrier modulation.
The demodulated AF signal will be made available also at the headset interface.
ALC (automatic level control) is performed in the front panel unit, compensating volume
variations of voice signals. The Tx ALC cannot be disconnected.
Carrier activation is performed in voice mode (V/D UNCP) via the headset interface.
In Menu 550 (PTT COMLINE MAPPING) the four PTT lines (PTT_1, PTT_1L, PTT_2,
PTT_2L) can be configured also for local mode. For more details on PTT mapping refer
to chapter 3.
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When local mode is left by pressing the LOCAL key, all settings which were active when
remote mode was last left will be reactivated. However, changes made in Menus 400
(RADIO MAINTENANCE) and 600 (RADIO SETUP) will be preserved!
For more details on communication modes, sessions, line mapping etc. see chapter 3.
q 212)) Key (Front Panel)
Switching the transceiver on or off.